Ok.. I just got my new harness in to put my b18c1 into my 94 civic ex. it obd 1
riht now it wired up by a gsr hardness now. im geting code 23 which is knock
sensor can u tell me hiw to wire up so my check engine light doesnt come on and
i just purchase some 4into 1 headers i bought it for a guy that was on his b16a will this fit on my gsr

 

B16a Headers wont fit on GSR...the oil pan will be in the WAY

 

i think u have to run the knock sensor to your ecu cuase the civic don't have knock sensor. i don't remember which pin # it is though.